US6102091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow core pneumatic wheel having contour conforming polyurethane wall
Assignee: Hyper Corp
•
Filing: 1997-07-10
•
Granted: 2000-08-15
•
Expires: 2017-07-10
Abstract
Abstract A urethane wheel including a hard urethane hub formed with a rim facing radially outward, and including stand-off ribs spaced equidistant thereabout. The stand-off ribs having centering notches opening radially outward. A thin wall polyurethane annular bladder with an interior annular stand-off skirt facing radially inward, contacting the centering notches of the stand-off ribs, and cooperating to position the bladder both radially and axially about the rim. The tire body is formed of soft polyurethane which surrounds the rim, encapsulates the bladder creating and integral cavity, and forms a contoured surface. A method of manufacturing the wheel which includes selecting a pressurized annular bladder, locating the bladder both axially and radially about the rim, forming a concentric bridge space having axial communication channels between the rim and bladder, and then pouring liquid urethane in a mold to form the tire.
Inventors
- 👤 Tom Peterson
- 👤 Neal Piper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:17
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/22; A63C17/223; A63C17/24; B; B29; B29C; B29C70/00; B29C70/68; B29C70/74; B29D; B29D30/00; B29D30/02; B60; B60C; B60C7/00; B60C2007/005; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10036; Y10T152/10117
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
127 words
An in-line urethane skate wheel comprising: a hard urethane hub formed with a rim surface facing radially outwardly; a thin wall polyurethane annular bladder having a wall defining a toroidal chamber disposed concentrically about said rim surface and spaced radially outwardly therefrom; stand-off ribs spaced equidistant about said rim surface and configured with radially outwardly disposed abutment surfaces contacting said bladder to cooperate in supporting said bladder in radially spaced relation to said rim surface; said ribs being arranged in alternate staggered relationship on opposite axial sides said bladder and formed with respective centering surfaces that angle radially and axially outwardly on the respective opposite axial sides of said bladder; and a relatively soft polyurethane tire body substantially encapsulating said bladder and bonded to said rim surface.
Claim 2
Dependent Claim
127 words
An in-line urethane skate wheel comprising: a hard urethane hub formed with a rim surface facing radially outwardly; a thin wall polyurethane annular bladder having a wall defining a toroidal chamber disposed concentrically about said rim surface and spaced radially outwardly therefrom; stand-off ribs spaced equidistant about said rim surface and configured with radially outwardly disposed abutment surfaces contacting said bladder to cooperate in supporting said bladder in radially spaced relation to said rim surface; said ribs being arranged in alternate staggered relationship on opposite axial sides said bladder and formed with respective centering surfaces that angle radially and axially outwardly on the respective opposite axial sides of said bladder; and a relatively soft polyurethane tire body substantially encapsulating said bladder and bonded to said rim surface.
Claim 3
Dependent Claim
23 words
A wheel as set forth in claim 1 wherein: said stand-off ribs include radially outwardly opening centering notches for engagement with said bladder.
Claim 4
Dependent Claim
27 words
A wheel as set forth in claim 1 wherein: a polyurethane bond bonding said tire body to said rim, to said stand-off ribs, and to said bladder.
Claim 5
Dependent Claim
25 words
A wheel as set forth in claim 1 wherein: said bladder includes a radially interior, annular, stand-off skirt projecting radially inwardly to contact said rim.
Claim 6
Dependent Claim
14 words
A wheel as set forth in claim 1 that includes: fluid in said bladder.
Claim 7
Dependent Claim
15 words
A wheel as set forth in claim 1 that includes: pressurized fluid in said bladder.
Claim 8
Dependent Claim
22 words
A wheel set forth in claim 1 that includes: fluid under pressure of between 0 to 10 psi in said toroidal chamber.
Claim 9
Dependent Claim
39 words
A wheel as set forth in claim 1 wherein: said bladder includes a pair of ring shaped polyurethane sheets defining side walls and radially internal and external heat sealed weld seams sealing the marginal edges of said sheets together.
Claim 10
Dependent Claim
46 words
A wheel as set forth in claim 1 wherein: said tire body is formed with an annular arch enveloping the radially outer extent of said bladder and configured with a radially outwardly disposed cushion and ring shaped side walls axially spaced apart sitting on said rim.
Claim 11
Dependent Claim
18 words
A wheel as set forth in claim 1 wherein: said bladder is constructed integral with said tire body.
Claim 12
Dependent Claim
19 words
A wheel as set forth in claim 1 wherein: said bladder is formed with a radially interior non-distendable ring.
Claim 13
Dependent Claim
19 words
A wheel as set forth in claim 1 wherein: said bladder is formed with a radially exterior non-distendable ring.
Claim 14
Dependent Claim
16 words
A wheel as set forth in claim 1 wherein: said bladder is circular in axial cross-section.
Claim 15
Dependent Claim
21 words
A wheel as set forth in claim 1 wherein: said ribs are formed with said centering surfaces configured with centering depressions.
Claim 16
Dependent Claim
33 words
A wheel as set forth in claim 1 wherein: said ribs are arranged to include centering surfaces disposed on opposite axial sides of said bladder to hold it axially centered on said hub.
References Cited (Backward Citations)
US988533A
Cited
US2052130A
Cited
US2324974A
Cited
US2570349A
Cited
US2677906A
Cited
US2871061A
Cited
US3121430A
Cited
US3389922A
Cited
US3469576A
Cited
US3937780A
Cited
US3823293A
Cited
US3980595A
Cited
US3877710A
Cited
US4040670A
Cited
US4183156A
Cited
US4208073A
Cited
US4219945A
Cited
US4219945B1
Cited
US4305212A
Cited
US4445283A
Cited
US4361969A
Cited
US4379104A
Cited
US4387071A
Cited
US5158767A
Cited
US5048848A
Cited
US5028058A
Cited
US4909523A
Cited
US5046267A
Cited
US5297349A
Cited
US5253435A
Cited
US5257470A
Cited
US5416988A
Cited
US5256350A
Cited
US5129709A
Cited
US5353523A
Cited
US5343639A
Cited
US5406719A
Cited
US5468140A
Cited
US5351710A
Cited
US5441286A
Cited
US5362075A
Cited
US5346231A
Cited
US5425184A
Cited
US5320418A
Cited
US5310250A
Cited
US5312844A
Cited
US5353459A
Cited
US5406661A
Cited
US5401037A
Cited
US5560685A
Cited
US5567019A
Cited
WO1996018513A1
Cited
US5630891A
Cited
US5632829A
Cited
US5908519A
Cited
US5733015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-08-15 | 2004-02-14 | 2004-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-08-15 | 2008-02-14 | 2008-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-08-15 | 2012-02-14 | 2012-08-15 | $7700.00 | Window Closed / Lapsed |